Delete local copy of generated documentation

Author: Naktibalda

Robofile.php

@@ -18,9 +18,6 @@
         "php": ">=5.6.0 <9.0",
         "codeception/codeception": "^4.0"
     },
-    "require-dev": {
-        "codeception/util-robohelpers": "dev-master"
-    },
     "conflict": {
         "codeception/codeception": "<4.0"
     },